The U.S. Coast Guard says a freighter carrying iron ore pellets has run aground on the Canadian side of southern Lake Huron, about one mile offshore of Sarnia, Ontario. The agency there's no reports of injuries or pollution after the shipped named Buffalo ran aground late Wednesday while en route to Cleveland.

The U.S. Coast Guard is assisting Thursday in the response and sent a 41-foot boat to the scene. Sarnia is located across the St. Clair River from Port Huron, Michigan, about 55 miles northeast of Detroit.

The Blue Water Bridge has been reopened. The bridge, which links Port Huron, Michigan and Sarnia, Ontario, was shut down Monday and Tuesday to commercial traffic as crews worked to clear snow from the week's severe winter storm.

The blast of artic air that has enveloped the Great Lakes is causing major problems for truck traffic between Michigan and Ontario. Canadian officials have been forced to close Highway 402 which connects with the Blue Water bridge. Here are two reports on the situation in Ontario and in Port Huron:

Digital Journal reports:

A "red alert" issued by Emergency Management Ontario for the stretch of Hwy. 402 between London and Sarnia has been canceled but a state of emergency remains in force.

680 News is reporting that three Canadian Forces military helicopters are now taking part in the rescue effort as hundreds remain stranded between the two cities.

The radio station quotes OPP Const. Chrystal Jones:

"Some of our OPP four-wheel drive vehicles were experiencing difficulties in the snow because again, the plows have not been out. And of course, vehicles have been abandoned in the middle of roadways, so they've become impassable."